Large Eddy Simulations (LES) are conducted to study the actuated flow field around a bluff body.
The model is a simplification of a section of a truck cabin. The aim is to model the separation of the flow acting
at the front part, the so called A-pillar. LES data show the connection between orientation and frequency of the actuation in comparison with drag reduction and separation mechanism. The flow is post processed using modal and frequency decompositions. Relevant results in terms of drag coefficient reduction were observed for the actuated flow. An optimal actuation in terms of induced frequency and drag reduction is also found.

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HarvardMinelli, G., Krajnovic, S. och Basara, B. (2015) Actuation of the flow field around a frontstep with a rounded leading edge.

BibTeX @conference{Minelli2015,author={Minelli, Guglielmo and Krajnovic, Sinisa and Basara, Branislav},title={Actuation of the flow field around a frontstep with a rounded leading edge},booktitle={8th international symposium on Turbulence, Heat and Mass Transfer, September 15-18, 2015, Sarajevo, Bosnia and Herzegovina},abstract={Large Eddy Simulations (LES) are conducted to study the actuated flow field around a bluff body.
The model is a simplification of a section of a truck cabin. The aim is to model the separation of the flow acting
at the front part, the so called A-pillar. LES data show the connection between orientation and frequency of the actuation in comparison with drag reduction and separation mechanism. The flow is post processed using modal and frequency decompositions. Relevant results in terms of drag coefficient reduction were observed for the actuated flow. An optimal actuation in terms of induced frequency and drag reduction is also found.},year={2015},}

RefWorks RT Conference ProceedingsSR ElectronicID 223427A1 Minelli, GuglielmoA1 Krajnovic, SinisaA1 Basara, BranislavT1 Actuation of the flow field around a frontstep with a rounded leading edgeYR 2015T2 8th international symposium on Turbulence, Heat and Mass Transfer, September 15-18, 2015, Sarajevo, Bosnia and HerzegovinaAB Large Eddy Simulations (LES) are conducted to study the actuated flow field around a bluff body.
The model is a simplification of a section of a truck cabin. The aim is to model the separation of the flow acting
at the front part, the so called A-pillar. LES data show the connection between orientation and frequency of the actuation in comparison with drag reduction and separation mechanism. The flow is post processed using modal and frequency decompositions. Relevant results in terms of drag coefficient reduction were observed for the actuated flow. An optimal actuation in terms of induced frequency and drag reduction is also found.LA engLK http://publications.lib.chalmers.se/records/fulltext/223427/local_223427.pdfOL 30